Toothbrush



FIG. 1 is a front perspective view from above and one side of the article;

FIG. 2 is a rear view of the article;

FIG. 3 is a view of the other side of the article;

FIG. 4 is an enlarged top plan view of the article; and,

FIG. 5 is an enlarged bottom plan view of the article. 

The ornamental design for a toothbrush, as shown and described. 